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arsen [322]
3 years ago
13

The evolution of eukaryotic cells most likely involved _____.

Biology
1 answer:
Sergeeva-Olga [200]3 years ago
7 0
Absorbing prokaryotic cells. This theory is called the endosymbiotic theory.
The early prokaryotic cells that were absorbed likely evolved into mitochondria and chloroplasts, membrane-bound organelles with their own DNA in single chromosomes and their own ribosomes.
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What are the economic importance of coelenterates??​
aalyn [17]

Answer: Coelenterates as a whole are of little economic importance. Seldom used as food by man, they are eagerly devoured by certain fishes and by invertebrates such as the crown of thorns starfish. Certain corals used as ornaments and for the manufacture of jewelry have become rare because of exploitation.

<h2><u><em>Hope it will help you !</em></u></h2>

3 0
3 years ago
Based on your data,cells spend most of their time in which phase?
tester [92]

Answer:

Interphase

Explanation:

Eukaryotic cells have two parts of the cell cycle: Interphase and mitotic phase. It is the interphase in which a cell typically spends most of its time. During interphase, a cell grows and carries out the metabolic activities for regular growth and maintenance.

5 0
3 years ago
Read 2 more answers
Name for the places a biologist might study​
alexandr402 [8]

Answer:

a lab or landscape

Explanation:

theses are the places they would study at

6 0
3 years ago
Read 2 more answers
Occasionally a new resistant strain of pathogen appears. The new strain may spread rapidly. Explain why
vladimir1956 [14]

Answer:

Antibiotics are not effective for new strains and so new resistant pathogens survive and reproduce, which leads to the increasing population of resistant pathogens and spread rapidly.

Bacteria can evolve and adapt themselves quickly as they are able to reproduce at a fast rate. Mutations of bacteria produce new strains that are resistant to certain antibiotics, such as penicillin, and cannot be destroyed by the antibiotic so they spread more rapidly.

4 0
2 years ago
20. What would happen to a paramecium that is placed in a jar of syrup?
zubka84 [21]

Answer:

It will shrink.

Explanation:

When  a solution contains more solute than the surrounding environment  where ,it  is located,it is said to be hyper tonic.Such a solution is of higher concentration,and therefore contains little water.

Syrup is an example of an hype tonic solution.Corn syrup  as an example  contains more solute in it,

Paramecium is unicellular organisms which is aquatic in habitat,therefore compare to the syrup of high solute it is hypo tonic.

Thus when placed in syrup,Paramecium loses water by osmosis,since water from the Paramecium at lower concentration would move out through the paramecium membrane ,as semipermeable membrane,into the syrup,of higher concentration

The paramecium will eventually shrink,and die,due to dehydration.

5 0
3 years ago
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